Sand and gravel cleaner.



W. G. MERGER.

SAND AND GRAVEL GLEANER. APPLICATION FILED 00'l.8, 191s.

Patented Nov. 25, 1913.

2 SHEETS-SHEET 1.

W. G. MERGER.

SAND AND GRAVEL CLEANER.

APPLICATION FILED 0012a. 1913.

Patented Nov. 25,1913.

2 SHEETSSHEET2.

gwvamko %(%IgMM// v I wrong,

UNITED s Es-imnfi T FF E-.1

WALTER c.- mnncn'ra or i'ucnmonn, vmonir'a;

SAND AND GRAVEL CLEANER.

To'fall tvhom it concern: a .B e it known that I, WALTER. (ii-M RCER, a

citizen of the United States," residing at;

water, and which will eifectively cleah the gravell j The machine comprises a rotary cylinder provided ,with inner lifting flanges which elevatethe material and drop the same onto an inclined wash board which is provided with-l'transverse guides inclined toward the discharge end so that thematerial is progressively fed from one end of the cylinder to the other andiis fiiiallyldischarged into a chute. The wash wateris supplled at the discharge end of the cylinder and flows through the same toward thefeed end where it. passes out carrying with it the dirt and the impurities. A water line I is also provided for discharging water onto the wash board. I The invention is illustrated in the accompanying drawing in wliich+ Figure 1 is a side elevation of the machine, partly in section.- Fig.2 'is an elevation, partly in section, of the feeding end of the machine. Fig. 3 is a detail in section of the cylinder on the line 3-3 of Fig. 1.

Referring specifically to the drawings, 6

indicates a cylinderor drum preferably con-- structed of metal-and mounted horizontally to rotate on rollers 7 It is driven byja-i'ing gear 8 thereon meshing with a :pinion 9 driven by suitablebevel gear connections to a pulley 10. At tbeinlet end this cylinder has an annular flange 11; '.'p r ojecting inwardly, and at the outletend hasa siinilar flange 12, the formerbeing of less height than the latter, so that the wash water flows from the outlet end of the' cylinder toward the inlet end where it escapes over the flange 11 andinto a discharge hopper 13, the direction of flow of water beingftherefore contrary to the direction of trayel' ofthe mate v rial to be washed, whichli's advantageous with respect to the cleaning action.- The water is supplied into th'outlet end of the Specification of IiLetters Patent.

- Patented Nov.25 :1913.

Application filed October a, ieia. se ial No. 794,053.

"Ecylinder by .a water pipe 14. An overflow hopper 16 is located at the outlet end.

For the greater portion of its length the interior of the cylinder is provided with lon- .gitudinally extending angle irons or lifters 17, which extend parallel to each other-and to the axis. The last foot or' two .of the cylinder is also provided with angle irons 18 but these are cupped or curved. to more efiec- :tively lift the material and drop it into the discharge hopper -19,-whi c h projects into the outlet end of the cylinder. The feed hopper 2Qp j hito..the'inlet.end-.. Located within the cylinder is a Wash board or table 21 which is mounted on angle irons 22 forming part of a frame which is pivotally supported at its opposite ends on standards 23 and 24. The pivotal mounting enables the wash board to be set at any desired angle, and it is held at adjustment by any suitable means such as adjustable links '25 connecting the frame and the legs of the standards 23.

Upon the wash board 21 are mounted a succession of angle irons 26, constituting which is dropped on the table, toward the outlet end of the cylinder. These angle irons 26 are pivoted at one end, as indicated at 27 to the board, and at their other ends are connected to a rod 28 which may be shifted to vary the inclination of the guide irons by swinging the same on their pivots 27, to pro duce a slower or faster travel of the material through the machine. The wash board is supplied with water discharged through the tends along within the cylinder adjacentto the upper edge of the Wash board.

der through the hopper 20 is lifted by the flanged irons 17 and drop ed onto the wash board where it is washed y the water disdown the wash board between the guide irons 26, progressing toward the outlet end of the cylinder as it is repeatedly lifted and dropped, until the cleaned material is finally lifted by the flanged irons 18 and dropped into the discharge hopper 19. The hoppers water entering at the outlet end throughthe pipe 14, and this water, as'well as thewater which flows over the wash board, and the guides to direct the flow of the material charged thereon from the pipe 30, and flows.

jet slots 29 in a feed water pipe 30 which ex- In operation, material fed' into the cylin- 19 and 20 conveniently project between the; beams 22 onwhich'the wash board is mounted. The cylinder also receives'a supply of accumulated dirt, etc., flow out over the flange 11 and into the discharge hopper 13, to waste. The clean sand and gravel is thus discharged at the .outlet end'of thecylinder and the dirty material at the other end. The

last one or two of the guide irons on the are preferably fixed thereto,'instead of bein adjustable, so-that the finished material wil be advanced to the curved lifting blades 18 without delay. I

What I: claim as new is: H l 1. The combination of a revolving drum,

I a washing board extending lengthwise therein and inclined transversely,.on which board material is dropped by fl er-revolution of the 7 drum, means to flow water across the board,

and a waterpipe'extending within the drum along the upper edge; of the board and pro- 20 vided with'openings adapted to cause afl'ow of material from one end of the drum toward the other.

2. The-c0mbinati0n of a revolving drum provided with internal lifters, a washin 'board extending lengthwise therein an adapted to receive material dropped by the wash board, which'I have indicated at 26 lifters, said board being inchned transversely, a succession of guides on the board, inclined to direct the flow of material toward one end of the drum,-and a water pipe extending lengthwise within the drum, along the upper edge of the board, and provided with jet openings arranged to discharge water onto theboard.

Intestimony whereof,I allix my signature in presence of two witnesses.

-' WALTER C. MERCER. Witnesses:

. Gno. C. Frrznnon,

R. R. ,SWATHWAY, Jr. 

